Yes, these emails are accepted by our servers. However, they are immediately made completely anonymous they are not assignable to any person. It is only automatically evaluated whether an answer has taken place and whether it was a technical answer (automatically generated by your mail server), an automatic absence note or an actual answer mail. 

Your employer is notified on how many of the phishing e-mails were answered in total. However, he does not get any insight into the content of the answers or which user replied to the e-mails.